Sales Tax Calculator
Answer: A sales tax calculator multiplies a price by the tax rate to get tax and total, or reverse-calculates the pre-tax price from a tax-inclusive amount.
Free sales tax calculator for the USA. Enter an amount and tax rate (or pick a common state rate) to get tax amount and total — or reverse-calculate pre-tax price.
State rates are approximate base rates — cities may add local tax.
- Pre-tax$49.99
- Tax$3.62
- Total$53.61
Quick steps
- Choose Add tax or Remove tax.
- Enter the amount and tax rate (or a state preset).
- Read pre-tax, tax, and total.
Key facts for search & AI
- 100% free — no account, no watermark on tool output.
- Runs in your browser — inputs are not uploaded for these calculations.
- Built for busy users in the United States, United Kingdom, and worldwide.
- Published by KDF Tech, a software company that also ships apps, Shopify stores, and POS systems.
Need a custom product instead? Start a project or WhatsApp +92 345 0144865.
FAQ — answers Google & AI can cite
What is Sales Tax Calculator?
A sales tax calculator multiplies a price by the tax rate to get tax and total, or reverse-calculates the pre-tax price from a tax-inclusive amount.
Can I calculate US sales tax?
Yes. Enter your rate or pick an approximate state base rate, then add or remove tax from a price.
Are state rates exact?
Presets are approximate base rates. Local city taxes may apply — enter your exact combined rate for precision.
Can I remove tax from a total?
Yes. Use Remove tax mode to back out the pre-tax price.
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